A furnace ignitor typically lasts 8-15 years
Furnace ignitors generally provide reliable service for 8 to 15 years before requiring replacement. Regular maintenance can extend their lifespan significantly.
Factors Affecting Ignitor Lifespan
- Frequency of furnace operation
- Quality of installation
- Environmental conditions
- Maintenance schedule
Signs Ignitor Needs Replacement
- Furnace fails to ignite
- Delayed ignition or multiple attempts
- Blinking error codes on furnace display
- Burning smell or unusual noises
Replacement Cost Comparison
| Ignitor Type | Average Cost | Installation Time | Lifespan |
|---|---|---|---|
| Hot Surface Ignitor | $150-$300 | 1-2 hours | 10-15 years |
| Spark Ignitor | $100-$200 | 1 hour | 8-12 years |
| Electronic Ignitor | $200-$400 | 2-3 hours | 12-18 years |
Maintenance Tips
Regular cleaning and inspection can prevent premature failure. Check ignitor annually during furnace maintenance.
When to Call a Professional
If you notice any ignition problems, contact a qualified HVAC technician immediately to avoid safety hazards or complete furnace failure.